Source Code Cross Referenced for MethodExclusionMBeanInfoAssembler.java in  » J2EE » spring-framework-2.5 » org » springframework » jmx » export » assembler » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.jmx.export.assembler 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright 2002-2006 the original author or authors.
003:         *
004:         * Licensed under the Apache License, Version 2.0 (the "License");
005:         * you may not use this file except in compliance with the License.
006:         * You may obtain a copy of the License at
007:         *
008:         *      http://www.apache.org/licenses/LICENSE-2.0
009:         *
010:         * Unless required by applicable law or agreed to in writing, software
011:         * distributed under the License is distributed on an "AS IS" BASIS,
012:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013:         * See the License for the specific language governing permissions and
014:         * limitations under the License.
015:         */
016:
017:        package org.springframework.jmx.export.assembler;
018:
019:        import java.lang.reflect.Method;
020:        import java.util.Arrays;
021:        import java.util.Enumeration;
022:        import java.util.HashMap;
023:        import java.util.HashSet;
024:        import java.util.Map;
025:        import java.util.Properties;
026:        import java.util.Set;
027:
028:        import org.springframework.util.StringUtils;
029:
030:        /**
031:         * <code>AbstractReflectiveMBeanInfoAssembler</code> subclass that allows
032:         * method names to be explicitly excluded as MBean operations and attributes.
033:         * 
034:         * <p>Any method not explicitly excluded from the management interface will be exposed to
035:         * JMX. JavaBean getters and setters will automatically be exposed as JMX attributes.
036:         *
037:         * <p>You can supply an array of method names via the <code>ignoredMethods</code>
038:         * property. If you have multiple beans and you wish each bean to use a different
039:         * set of method names, then you can map bean keys (that is the name used to pass
040:         * the bean to the <code>MBeanExporter</code>) to a list of method names using the
041:         * <code>ignoredMethodMappings</code> property.
042:         *
043:         * <p>If you specify values for both <code>ignoredMethodMappings</code> and
044:         * <code>ignoredMethods</code>, Spring will attempt to find method names in the
045:         * mappings first. If no method names for the bean are found, it will use the
046:         * method names defined by <code>ignoredMethods</code>.
047:         *
048:         * @author Rob Harrop
049:         * @author Seth Ladd
050:         * @since 1.2.5
051:         * @see #setIgnoredMethods
052:         * @see #setIgnoredMethodMappings
053:         * @see InterfaceBasedMBeanInfoAssembler
054:         * @see SimpleReflectiveMBeanInfoAssembler
055:         * @see MethodNameBasedMBeanInfoAssembler
056:         * @see org.springframework.jmx.export.MBeanExporter
057:         */
058:        public class MethodExclusionMBeanInfoAssembler extends
059:                AbstractConfigurableMBeanInfoAssembler {
060:
061:            private Set ignoredMethods;
062:
063:            private Map ignoredMethodMappings;
064:
065:            /**
066:             * Set the array of method names to be <b>ignored</b> when creating the management info.
067:             * <p>These method names will be used for a bean if no entry corresponding to
068:             * that bean is found in the <code>ignoredMethodsMappings</code> property.
069:             * @see #setIgnoredMethodMappings(java.util.Properties)
070:             */
071:            public void setIgnoredMethods(String[] ignoredMethodNames) {
072:                this .ignoredMethods = new HashSet(Arrays
073:                        .asList(ignoredMethodNames));
074:            }
075:
076:            /**
077:             * Set the mappings of bean keys to a comma-separated list of method names.
078:             * <p>These method names are <b>ignored</b> when creating the management interface.
079:             * <p>The property key must match the bean key and the property value must match
080:             * the list of method names. When searching for method names to ignore for a bean,
081:             * Spring will check these mappings first.
082:             */
083:            public void setIgnoredMethodMappings(Properties mappings) {
084:                this .ignoredMethodMappings = new HashMap();
085:                for (Enumeration en = mappings.keys(); en.hasMoreElements();) {
086:                    String beanKey = (String) en.nextElement();
087:                    String[] methodNames = StringUtils
088:                            .commaDelimitedListToStringArray(mappings
089:                                    .getProperty(beanKey));
090:                    this .ignoredMethodMappings.put(beanKey, new HashSet(Arrays
091:                            .asList(methodNames)));
092:                }
093:            }
094:
095:            protected boolean includeReadAttribute(Method method, String beanKey) {
096:                return isNotIgnored(method, beanKey);
097:            }
098:
099:            protected boolean includeWriteAttribute(Method method,
100:                    String beanKey) {
101:                return isNotIgnored(method, beanKey);
102:            }
103:
104:            protected boolean includeOperation(Method method, String beanKey) {
105:                return isNotIgnored(method, beanKey);
106:            }
107:
108:            /**
109:             * Determine whether the given method is supposed to be included,
110:             * that is, not configured as to be ignored.
111:             * @param method the operation method
112:             * @param beanKey the key associated with the MBean in the beans map
113:             * of the <code>MBeanExporter</code>
114:             */
115:            protected boolean isNotIgnored(Method method, String beanKey) {
116:                if (this .ignoredMethodMappings != null) {
117:                    Set methodNames = (Set) this .ignoredMethodMappings
118:                            .get(beanKey);
119:                    if (methodNames != null) {
120:                        return !methodNames.contains(method.getName());
121:                    }
122:                }
123:                if (this .ignoredMethods != null) {
124:                    return !this .ignoredMethods.contains(method.getName());
125:                }
126:                return true;
127:            }
128:
129:        }
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